Sleeve curve ruler You can paste the curve on cardboard to make it sturdy. Without measurements. This is a PDF file, no physical product will be posted to you. You will receive the digital files a few hours after you place your order. Follow the corner mark on the page to perfectly align the page. It will print one page in Letter format. Either print the curve on heavy paper or print on regular paper and glue onto paperboard (such as a cereal box or notebook cover), then cut it out. Sleeve cap curve ruler dimensions: 12.5'' height to 1.5'' width. Helps to draw sleeve back and sleeve front of the sleeve pattern piece or any other curve lines. What is a sleeve cap? The sleeve cap is the curved top section of the sleeve from the front underarm to the back underarm. This ruler is a helpful tool for any sewing or crafting. Perfect for pattern alterations, garment alterations or any time a curve is needed. If you like the patterns, please help to promote my store MarinaPatterns. Thank you for visiting! Marina Kosova