Easy to read tension gauge Interface EPS-M (Compatible with Shimano SPD) Body Engineering thermoplastic. Axle Heat-treated, CNC-machined Cr-Mo (cartridge) Bearings LSL bushing & sealed Binding Double-sided Cr-Mo, tension adjustable Cleats E-C05F Size 85 x 64 mm Compatible with Exustar two bolt shoes, other two bolt hole SPD shoes. Exustar is a quiet achiever. For 20 years Exustar has produced a high quality professional level cycling shoes & pedals. If Exustar is not as well-known or as flashy as some of Exustar's major rivals, it's because Exustar doesn't run expensive ad campaigns or sponsor corporate race teams. Instead Exustar diligently toils away, researching, testing, & constantly improving their products. Exustar's reputation stands on their products alone, products that have premium quality with exceptional value.