Sarveshwari engineers manufactures rim width callipers [with ears] for measuring inner and outer width of the wheels; width 4 to 13 inch and inner diameter 10 to 17 inch. These callipers are made of polyamide [6 glass filled] for super impact resistance. The product has black colour dull finish with scales that are screen printed for easy and quick readability. This type of callipers bearing code number 110008 weigh 400 gms.