Approximately 40cm oval-shaped mask strap made by GULL. NOT made of silicone!! - Brand: GULL - Size: Approximately 40cm - Shape: Oval I bought this because the mask strap I was using broke, but I'm selling it because it's made of "rubber" and not silicone (I don't like it getting tangled in my hair). I haven't used it even once. I will ship it folded small via non-standard mail. Shipping will be on or after January 3rd.