CATERPILLAR , Hydraulic Thumb fits CAT 303.5/3043/304.5 40mm Pin Excavator 2 Teeth Hydraulic Excavator Thumb 309-1917B, fits CAT 303.5 304 304.5 Excavator Features: 2 Teeth Thumb, One Cylinder 40mm Pin Fit CAT 303.5 304 304.5 and other 40mm Pin Size mini excavator Thumb designed to accept OEM style parts (Including Cylinder and Seal Kits) Paint is yellow and black Complete Thumb Set Including: Thumb Structure One Cylinder 2 Teeth Complete Hardware Specs: Overall Length: 840 mm or 35.6 inches Width: 480 mm or 21.3 inches Height: 230 mm or 14.6 inches Weight: 86 KGS or 189.6 Lbs