Feature: 1. INCLUDED PARTS: Double wheel bearing stock roller, equipped with 2 sliding blocks, 2 limit rings and 2 screws, can be used in standard 30 and 45 slots. 2. ALUMINUM ALLOY: The main body is made of excellent aluminum alloy, with anodized surface and CNC processing, rustproof and wear resistant. 3. ADJUSTABLE HEIGHT: 2 wheel inclined feeding, flexibly adjust the roller height according to the wood thickness to meet different use requirements. 4. STABLE STRUCTURE: Fixed with shockproof double rollers and double sliding blocks to ensure sufficient stress, with stable structure and no obstruction. 5. HIGH ACCURACY: With inclined angle roller, which has the function of guiding material, the guiding roller has high operating accuracy and good stability. Specification: Item Type: Bearing Stock Guide Roller Material: Aluminum Alloy Color: Black, Red Use: For Woodworking Tools. Package List: 1 x Stock Guide Roller 2 x Sliding Blocks 2 x Limiting Rings2 x Screws