A rigid platen is required for quality printing. This sleeve attachment is made from steel to prevent deflection. A second platen can be added later so that sleeves from two shirts can be printed with one print stroke. Standard sizes available are 3"x18"($75), 4"x18"($80), and 5"x18"($85), fractional widths like 3-1/4" and custom sizes. The 3" and 4" are the most popular. The quick release allows fast and easy adjustment and locking with only one handle. The attachment is low profile for the sleeve cuff to fit over the platen. The Quick Release Sleeve Attachment is made for R Jennings 4, 6 and 8-Color Floor Model Presses, but custom brackets can be made for customers who do not have a R Jennings Mfg press at $150 each, but we will need dimensional information. There is no sleeve attachment in the market equal to this attachment. All these options are just one of 32 standard and custom attachments available from R Jennings. There is no money in attachments for the manufacturers, and that is why other companies do not offer so many attachments, but our customers need attachments to increase revenue and attract customers.