We are one senior professional manufacturers for high level of pure handmade series wind instruments.Who supply various trumpet, trombone, plastic trumpet, plastic trombone with excellent quality.Parameter for professional plastic trumpet1:Brass bushing with precision polishing and grinding treatment2: High Quality Food grade stainless steel piston with ABS core, strong friction resistance and great air-tightness. With imported stainless steel Spring inside.3:With 7 C high quality plastic mouthpieces4: Damage prevention, and easily cleanable surface,High Strength Shinning Appearance5:Color can be customized , replaceable independent parts, interchangeable parts for trumpet assembly6: Mouth of trumpet Dia.123mm, Tube Dia.11.65mmProfessional plastic trumpet with multi-functional characteristics1:Precise and high quality C adjustable plastic trumpet2：Whole trumpet body3：Weight about 500 gram4:Strong structure made with ABS engineering plastics5:With adjustable tuned pipe for first, second, third piston valve, and the main body tube6: Traditional top elastic valve with easily replaceable spring inside7：Plastic injection piston valve with stainless steel sleeving8：wire inside the valve at the top and bottom are classic can quickly open the valve cover9：Ordinary lubricating grease is available10：Artistic and stable design for whole trumpet body and every details11：Fit with standard metal mouthpiece12：Traditional classic design style, and comfortable grasping design13: With drain valve design for tube end , easy replaceable sealing gasketSuper free gift1:Durable soft cloth bag2:7 C high quality plastic mouthpieces