Five Bqlzr 36X20Mm Electric Drum Trigger Sponge Accessories For Percussion Features: 1.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information; 2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed. 3.Made of high-quality sponge. 4.This product has good elasticity and rapid rebound. 5.Used to transmit the vibration of the drumhead to the piezoelectric sheet, so that the piezoelectric sheet is normally stressed Specifications: Material: sponge Color:Black,White Brand name: BQLZR Size: 36 x 20mm/1.42 x 0.79inch(Dia x L) Weight:13g Package include: 5 x Electronic Drum Sponges Made of high-quality sponge. This product has good elasticity and rapid rebound. Used to transmit the vibration of the drumhead to the piezoelectric sheet, so that the piezoelectric sheet is normally stressed