0.5M Plastic Spur Gear 0.5 Modulus T=15 15 Teeth Aperture 3.2mm 3.15mm Tight Fit 15T 3.2A DIY Model Dia 8.5mm X Height 6MM *FD431Product Description0.5M Plastic Spur Gear 0.5 Modulus T=15 15 Teeth Aperture 3.2mm 3.15mm Tight Fit 15T 3.2A DIY Model Dia. 8.5mm X Height 6MMSpecificationModulus:0.5MAperture:3.2MM(3.15MM)(Tight distribution)Teeth:15Diameter:8.5MMHeight:6MMPackage100Pcs X Plastic Gear(0.5M15T3.2A)