I have kept this item unused. I purchased it from a shop that handles imported rod building supplies. The manufacturer is unknown. The color is gunmetal (similar to silver), the total length is 98mm, the weight is 25.4g, the seat outer diameter is 16mm, the seat hole inner diameter is 13mm, and the diameter of the upper end of the reel seat that is embedded in the grip is 20mm. In my case, I use it for making glass rods with thick butt sections, and I think it is durable and easy to use. There are some minor scratches due to storage, but please understand. This is a relatively sturdy aluminum product, so I will put it in a cushioned envelope and send it via Nekopos (a Japanese delivery service).