V-Rail Linear Rail - V-Guide VRSD4-024 for Size 4 V-Wheels - Length: 24" Drilled Stainless SteelStainless Steel Linear V Rail, pre drilled 24" long, for Size 4 V wheels (60mm diameter roller bearings sold separately). This v groove rail is part of PBC Linears V Guide series. Constructed from 400 series stainless steel, it is polished for a high quality surface that minimizes friction and wear. Simple installation with a shoulder for precise mounting. The dual row angular contact design enhances load capacity for reliable high speed performance.