Tenn-Tex self-aligning rear mounting sockets for KV 8400 full extension slides. Save time adjusting drawers if your cabinets are not square. The sockets align the drawer box side-to-side when the drawer is closed. Available with or without KV8403 rear mounting socket in a screw-on version or a press-in version with 8mm dowels. Handed two-piece design, sold in pairs.