Product Name :VITAVON Alu Beadlock Wheel V1 For Traxxas UDR 1:7 sells as  2pcs
Brand : VITAVON
Color : All Silver, All Black, Silver rim+Green ring, Silver rim+Black ring, Silver rim+Purple ring, Silver rim+Red ring, Silver rim+Blue ring, Brown rim+Black ring, Gold rim+Black ring, Silver rim+Orange ring, Red rim+Black ring

VITAVON beadlock wheels V1 fit UDR stock tires 2.2”(traxxas#8470) perfectly, 17mm hex, 6mm offset, 12 grade hard steel screws.

Sell as one pair 2pcs. it means if you need at least 4pcs for your truck, need to order "2" pairs. if you need 6pcs, pls order "3" pairs.
https://m.youtube.com/watch?v=pZ__l_G-IVQ&feature=youtu.be
Rims and rings are made of alu 6061.
Accessories included :  Screws for assembling.