1.Cage paint roller frame 2.American style roller refill 3.Mini roller frame 4.Minirollers 3'', 4'', 7'', 9'' wire cage paint roller, 3'', 4'', 7'', 9'' different kinds ofAmerian atyle paint roller refill.4'' miniroller frames, 4'', 6'' dia. 15mm or 30mm different kids ofmini roller.It can be combinated as you required.