100% brand new and high quality Made of high-quality materials, durable Waterproof connection plug, easy installation Applicable models: 6V bicycle headlights and taillights, for Tongsheng TSDZ2 mid drive motors Material:Mixed material colour:black Package Contents: 1 * Speed Sensor Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.