... 5. SGS ,(EN) 71approved 6ft square anti-slip yoga mat- extra thick 1/4",exercise yoga mat1:anti ... free , heavy metals free , washable , durable , anti-slip , eco friendly , kindly to health . Questionsmaterialdensitybusiness ... roll it up or plain it in a clean place ,don't fold ... towel to wipe away the water left in the mat,last ,air-dry it ... ,rember,don't put your mat in the sun for the reason that you ...