Features: these LCD board replacement pens are featuring no oil, no ink, no dust, not easy to break, following the operating principle of pressure painting, convenient for your different uses | Easy to use: these replacement stylus are stable and smooth to use, light in weight and compact in size; No need to install batteries, you can rest assured to use | What you get: you will receive 24 pieces of LCD stylus pens, enough quantity for your daily uses and replacements, no more worrying about losing a stylus and not being able to replace it | Wide applications: these replacement touch stylus pens can be widely applied to dictation board, calculus paper, drawing board, message board, but not suit for ipad, tablets or regular electronic drawing boards; These are only suitable for LCD drawing boards | Size detail: each LCD board pen measures approx. 4.8 x 0.35 x 0.14 inch/ 122 x 9 x 3.5 mm, can be placed in some drawing board's slot; Please note it only fits for those drawing board designed with memory slot, which depends on the brand and specification of drawing board

Nice adhesion: the metal ring is not magnetic; These ring stickers have nice adhesion, which can hold your phone firmly and not easy to fall off, enjoying the nice and stable leisure time; Note: the metal ring is not magnetic | Thin size: each metal phone ring is approx. 0.4 mm/ 0.015 inches, which is thin enough and comfortable to hold; And its outer diameter is approx. 55 mm/ 2.16 inches, inner diameter is 45 mm/ 1.77 inches | Nice compatibility: the round metal sticker is suitable for mobile phones that support wireless charging, align your phone with your wireless charger, and lock it in place, providing easy wireless charging conveniently | How to use: tear off the protective film on the surface, and then put it on the wireless charger to have a magnetic attraction effect; Please place the metal ring on the outside of the shell, and ensure that the shell is smooth and flat | Reliable material: mini phone ring is made of quality material, not easy to rust and deform, no fading, which is reliable to use and can accompany you for a long time

Package contains: you will get 3 pieces of ESP-32 2.4GHz dual-mode development boards, enough for your daily use and replacement | Multiple functions: ESP32 development board integrates antenna switches, RF balun, power amplifiers, low noise amplifiers, filters and power management modules; And the entire solution occupies the smallest printed circuit board area | ESP-32 development board is safe, reliable and scalable to various applications, bringing you a lot of convenience | Small size: ESP-32 dual-mode module is compact and easy to embed into your device, convenient to use | Low power consumption: the development board uses 2.4GHz dual-mode Wi-Fi, chip ESP-WROOM-32, and 40nm low power consumption technology

Package includes: you will get 4 pieces of colored stylus drawing pens, come with 4 pieces of anti-lost elastic ropes, sufficient quantity and nice combination can meet your various demands, suitable for LCD writing boards | Reliable material: the replacement stylus adopts ABS material, which is stable and reliable, not easy to break or deform, wearproof and safe to use, bring you nice using experience | Proper size: each toddler drawing tablet pen measures 4.5 x 0.4 inch, appropriate size fits most LCD tablet memory slots, portable and practical | Anti-lose design: each stylus pen has a perforated design at the top; You can use the matched anti-lose rope, so you don't have to worry about your child dropping the pen | Note: these stylus drawing pens are not compatible with ipad, smartphone, tablet PC and other devices, they are suitable for all brands LCD writing boards

Package includes: you will get 4 pieces of colored stylus drawing pens, come with 4 pieces of anti-lost elastic ropes, sufficient quantity and nice combination can meet your various demands, suitable for LCD writing boards | Reliable material: the replacement stylus adopts ABS material, which is stable and reliable, not easy to break or deform, wearproof and safe to use, bring you nice using experience | Proper size: each toddler drawing tablet pen measures 4.5 x 0.4 inch, appropriate size fits most LCD tablet memory slots, portable and practical | Anti-lose design: each stylus pen has a perforated design at the top; You can use the matched anti-lose rope, so you don't have to worry about your child dropping the pen | Note: these stylus drawing pens are not compatible with ipad, smartphone, tablet PC and other devices, they are suitable for all brands LCD writing boards

Package includes: you will get 4 pieces of colored stylus drawing pens, come with 4 pieces of anti-lost elastic ropes, sufficient quantity and nice combination can meet your various demands, suitable for LCD writing boards | Reliable material: the replacement stylus adopts ABS material, which is stable and reliable, not easy to break or deform, wearproof and safe to use, bring you nice using experience | Proper size: each toddler drawing tablet pen measures 4.5 x 0.4 inch, appropriate size fits most LCD tablet memory slots, portable and practical | Anti-lose design: each stylus pen has a perforated design at the top; You can use the matched anti-lose rope, so you don't have to worry about your child dropping the pen | Note: these stylus drawing pens are not compatible with ipad, smartphone, tablet PC and other devices, they are suitable for all brands LCD writing boards