The shell is made of high-quality -retardant materials, which is and durable Intelligent lithium battery protection board is adopted to automatically cut off the power, protect the cell and motor, and prolong the battery life One-stop procurement of the complete accessories to replace the wooden field wrapped with plastic red bottom cover of 15 electric cores Model Number: Diy Kit Electronic PCB Board Module color:As shown Material:plastic Package Contents: 1 set x Electric drill nesting Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.