This is the HT100 Carbon Drag upgrade for your Daiwa Prolite PL-100 & PL-1000 casting reel, which we feel is the best all around washer for ANY reel. It offers a smooth startup, good holding power, and because it is a carbon drag washer, will not heat up and fade like the original....eliminate line jerk when fighting fish! Any ?'s regarding fit, please either Contact Us or see our Schematics Pages Kit contains 2 drag washers. Old drag washer PN# B36-0001 (under main gear) 1 X 3902 CBTX Old drag washer PN# B36-0201 (inside main gear) 1 X 6-60