The pulley wheel is convenient and practical, with excellent texture, and can be used for a long time without being easily damaged. The craftsmanship can serve you well without breaking easily. This printer wheel is a very practical accessory for your needs. Features -Color:Silver -Material:Plastic -Size:0.90X0.90X0.80cm/0.35X0.35X0.31in Inner hole diameter: 5mm -Made with plastic material, this passive wheel features a stable and precise movement thanks to its integrated bearing. -The modern and elegant transparent color design of this pulley wheel adds of style to your 3d printer or engraving machine. -With a wide compatibility of 5mm inner hole, this linear bearing pulley wheel is a versatile solution for various applications. -The plastic material used in the construction of this printer pulley wheel ensures its durability and resistance to wear and tear, making it a reliable choice for your 3d printing or engraving needs. -Every detail is carefully crafted, experience the high durability and practicality. Package list: 6 x wheels