Nail Tips S.M Mixed Sizes are S and M, but the difference in size is only about 1mm, so you probably won't notice much difference. If you're concerned, I'll include a nail file so you can adjust the size slightly and avoid any discomfort. For reference, I usually wear S size, but I also use M size depending on the design, and I can use them without any problems. Adhesive stickers are included. Ready to use upon arrival. Brand new, unused. Handmade. I have checked them, but there may be some minor scratches that I missed. Thank you for your understanding. The size chart is included at the end. Please check it before you purchase.