ITEM NAME:Front & Rear Drive Shaft Assembly Heavy Duty for Traxxas 1/10 Slash 4X4 Sta A7R7 Front & Rear Drive Shaft Assembly Heavy Duty for Traxxas 1/10 Slash 4X4 Sta A7R7 Made of high quality, compact Metal Easy to install and durable 2 Models for choice:Rear Drive Shafts size:109*10*10mm Material:Metal colour:Black Package Contents: 1 * Set Rear Drive Shafts (two) 2 * Spring Steel Cup Join 2 * Screws.1 Set Rear Drive Shafts (two). 2 Models for choice:Rear Drive Shafts. 2 Spring Steel Cup Join. size:109 10 10mm.