brand and durable Made of metal. the splined design interlocks with for Traxxas 17mm splined wheels. Perfect style and exquisite workmanship. With screws.Easy to install and durable for long time use. Part Number:5353X part Name:17MM HEX Wheel Hubs Replacement part for these models: Style: 1/10 E-Maxx Mamba (3908) 1/10 T-Maxx 2.5 (4910) 1/10 Revo 3.3 (5308) 1/10 Revo 3.3 (5309) 1/10 Summit (5607) 1/10 E-Revo Mamba (5608) Old Style: 1/10 E-Maxx EVX2 (3903) 1/10 T-Maxx 3.3 (4907) 1/10 T-Maxx 3.3 (4908) 1/10 T-Maxx 3.3 (4909) 1/10 E-Revo EVX2 (5603) 1/10 E-Revo EVX2 (5605) 1/10 Slayer Pro 4x4 (5907) colour:Silver/red/blue/Yellow/Green/dark blue/purple/Titanium material:Aluminum alloy size:17mm Package Contents: 4 * Combination set 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.