They can come to my house and use them and leave them. Most of my friends have more than I do so not a problem. Went to a class onetime and when I signed up for the class we received a list of items to bring. My mats and everything were bigger. Went to Walmart and got a beginner's quilt kit. It was on sale for about $20.00. Perfect size. It goes in my sewing machine carrier/tote. I loaned nothing out and showed one gal the list I received which she also received. She said she came with nothing and thought she could just borrow. Sorry, not from me. She tried but finally had to buy from the shop. She was not happy! Oh well!