Features： *Made of high quality aluminum material, strong and sturdy. *5 step can be applied to different speed requirements. *Suitable for A type V-shaped pulley timing belt. *Great for motor shaft drive. *Pulley Wheel only, other accessories demo in the picture is not included. Specifications： *Product name: Pagoda Pulley Wheel *Material: Aluminum *Color: Silver *Size: (Optional ) 14mm, 22mm, 2pcs set *14mm Holes outer diameter: 37-47-58-67-81mm *22mm Holes outer diameter: 44-56-68-76-86mm *Plug hole: M8 *Suitable for: A type V-shaped pulley timing belt. *Quantity: 1pc or 2pcs Package Content： Package1#: 1*Pagoda Pulley Wheel(Optional) Package2#: 2*Pagoda Pulley Wheel(14mm+22mm) Note： 1.Transition: 1cm =10mm =0.39inch. 2. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 3. Please allow slight manual measurement deviation for the data.