※Please be sure to read the profile. Purchase constitutes agreement with the profile contents.※ Price is firm as shipping is included. This is a set of rear caps for Contax/Yashica lenses and body caps for cameras. They are made of plastic and are compatible, but function without issue. Sizes: Thickness: approx. 14mm x Diameter: approx. 51mm (rear cap) Thickness: approx. 10mm x Diameter: approx. 59mm (body cap) How about for old lenses or old bodies? The product is brand new and unused. No comment, immediate purchase is possible. Free shipping, will be sent via Yu-Packet Post Mini. Same-day shipping is basically not possible. Also, shipping is not available on weekends, holidays, and festivals. Please purchase with plenty of time for arrival.