The adjustable shoe toe fillers are made of softest EVA material which make you feel comfortable.Memory buffer material,sufficient helps your big shoes and prevents heel slippage.Long term use will not deform.You can wash and reuse them multiple times.Wash them, air dry then toe cushions can be used again.Include 8 pairs (black and beige color comes each 2 pairs) of shoes toe inserts.If you have any problem in using, please feel free to contact us.Our customer service staff will certainly give you a satisfactory solution.