Looking for a replacement strap for your Casio watch? Look no further than the MULILAI For Casio Watches Watchband Silicone Rubber Bands Replace Electronic Wristwatch Band Sports Watch Straps 16mm 18mm 20mm 22mm. Watches. The 16mm, 18mm, 20mm, and 22mm strap sizes are perfect for most men’s watches, and the silicone material is comfortable and durable. The pin clasp ensures a secure fit, and the condition-new without tags ensures that you’ll be looking good and feeling great about your new strap.