Each resistance band is made of professional grade 100% natural latex (TPE free), is odor free, elastic, durable and will stay flat even after excessive use. No more issues like pinching your skin, snapping, or leaving marks on your clothes.Different color with different thickness,fit for different strength trainning.The thicker ,the price is higher.Below pricing is for 600x50x0.35mm(23.62''X1.96''X0.012'') with green color.Custom logo is available.Pls call us for more info!