This material rack features two bearings to reduce the pulling force on the extruder when feeding filament, helping to minimize extruder slippage and grinding. Rotatable 3D Printer Filament Holder: Designed to rotate freely, preventing filament tangling and ensuring smooth, convenient operation. Easy Installation: Mounts securely using two included screws—simple, quick, and stable. Smooth Filament Feeding: Constructed from high-quality metal and plastic for reliable performance and extended service life. Universal Compatibility: Suitable for profile-frame 3D printers supporting ABS, PLA, PETG, and TPU filaments. Rotatable Filament Holder with Bearings Maximum Bearing Load: ≤2.5 kg Sheet Metal Thickness Compatibility: 0.5–2 mm Compatible Printers: Profile-frame 3D printers Materials: Stainless steel, ABS, aluminum alloy Dimensions: 110 × 30 mm Sheet Metal Mounting Aperture: 30 mm Lightweight & Durable: ABS components offer low weight and excellent durability. Corrosion Resistant: ABS provides resistance to corrosion in typical operating environments. Tool-Free Snap-On Rotation: Designed for easy mounting onto brackets 0.5–2 mm thick. Color: Black Package Includes: 1 × Filament spool holder (barrel) 1 × Sheet metal rack mount 1 × Screw accessory pack Note: Color may vary slightly due to screen settings and lighting. Dimensions are subject to a tolerance of ±1–3 cm.