I still dont know if it is possible but If its not I would be fine with it. Would definitely buy these again and the bottoms are thick so great for even walking out to get the mail :). Very happy with this product, previously owning a tile, I am happy that I can replace the batteries on this and I don’t have to constantly re buy new tiles. They did very well. Amazon reemplazó por falla el producto en 2 días y la devolución se hizo en 6 días. I bought this to replace a set of 201 as they are now discontinued and very expensive for what they are. Pairs easily. waste of time. Very comfortable and cute, plus they have an actual sole so they last a long time. I cut up used tubes and duct tape to protect the bike from the clamps.