powerday10pairs Aluminum M3 Link Rod End Ball Joint CW CCW for 1/10 RC Car Crawler Buggy Blue Fit for M3 stud bolt,Suitable for all 1/10 RC car, truck, buggy, crawler Ball Hole Diameter: 3mm ,Ring Head Inner Diameter: 5mm Round Head Diameter : 11mm, Total Length:20mm T,hread Hole Diameter: 3mm Material: Metal, Color: Blue ,Weight: 3g Package Includes: 10 x Ball Joints(CW thread), 10 x Ball Joints(CCW thread)