Application: Suit for 0.5KG 1KG PLA ABS 1.75mm 3.0mm 3d printer filament. Widely Used: Suit for most 3D printers. Package List: 1*Barrel and 1*Bracket. Material: Our printer filament material mount rack bracket kit is made of stainless steel, aluminum alloy, and ABS plastic, which is securely installed and provides smooth wire feeding. Compatibility: Suit for Ender 3 Series/ CR 10 Series/ Ender 3 V3 SE/ Ender 3 V3 KE/ Sidewinder X1 3d printers.