Bait Reel Seats Carbon RDDP16/AB Bait Reel Seat- Body only – Duri Fishing

Bait Casting Reel Seats RDDP16-BL - Black, Body only – Duri Fishing

Abu Garcia Zata Low Profile Baitcast Reel and Fishing Rod Combo

SEAGUIDE PBCSS-SL16 DS16 Carbon Body Reel Seat SL SD Nut Aluminum Cap Rod Building Component Reel Seat Repair DIY Accessory - AliExpress

This is a bait reel seat with an exposed blank. I.D. is 15.5mm. You can use the carbon pipe CK155.

Bait Casting Reel Seats (RDDP16-BL) - Black, Body only

Abu Garcia® Max STX Baitcast Combo

TCS16 type – Duri Fishing

Reel Seats for custom rod building of Spinning, casting and fly rod – Duri Fishing

Bait Casting Reel Seats RDEP16-BM Black Marble for Rod Building – Duri Fishing

Bait Reel Seats Carbon RDDP16/AB Bait Reel Seat- Body only – Duri Fishing