Thank you for viewing! This product is for those who want to prevent sweat and foundation stains, and do not need neck coverage. It is a thin, two-layer fabric construction without any core materials. Set of 2. Please specify the number in the comment section. Size: Outer diameter 14cm, Inner diameter 11cm Materials: A: Knit & Cotton (also cotton/poly blend) B: Gauze & Cotton Elastic length: 30cm Reversible. Please adjust the elastic during use. Please understand that this is a handmade item, so there may be slight imperfections in the stitching.