Supplied in 230mm, 270mm, and 460mm
http://www.unipro.com.au/products/application/roller-sleeves-applicators/uni-pro-trade-hi-density-medium-22mm/
Uni Pro Roller Sleeve – HI Density Medium 22mm features a thick 5 ply solvent resistant core suitable for all paints.
For more information or product and sizes, follow the link Uni Pro