uxcell 304.8mm Girth 60 Teeth Single Side Stepper Motor Timing Pulley Belt Product Name : Timing Belt;Belt Model NO. : 120XL;Number of Teeth : 60 Pitch (P) : 5.08mm / 0.21";Tooth Height (th) : 1.27mm / 0.05";Tooth Width(tw) : 2mm / 0.08" Belt Thickness(t) : 2.3mm / 0.09";Belt Width : 10mm / 0.39";Belt Inner Girth : 304.8mm / 12" Material : Rubber, Polyurethane Composite Material;Color : Black Weight : 8g;Package Content : 1 x Timing Belt