TOSO (Toso) C-type Curtain End Cap C-type Curtain Cap Stop Outer dimensions: 2.3cm Inner dimensions: 2.1cm (Measured by an amateur) * Four pieces are for one curtain rail (double). If you need 8 pieces, we will offer them for ¥838. Please let us know in the comments. * No price reduction is possible. These are replacement parts for curtain rail caps that have deteriorated over time and have cracks or splits. Replacement is very easy. * Brand new, unopened * Will be bubble-wrapped and shipped within 24 hours via Yu-Packet Post Mini. * Immediate purchase is welcome!