Please see the "Stern Pad Strength Demo Video" on You-tube | Less than 5 minute install time (18 hours cure time) | No screwing into boat hull or using messy epoxies - Can be bottom painted | Pad Dimensions: 4.5" x 3.5" x .75" (Please use the Stern Pad Jumbo for larger 3D scanning transducers) | Includes: (1) Standard Size Black Stern Pad, (3) Screwless Cable Clips, & Install kit