Hakuba DMSP-SD4 Plastic SDHC Card Case can hold upto 4 SDHC cards its small so you can attach it to camera strap or belt loop or keep in pocket or your in your camera bag. It does have a lot of padding and your SDHC cards will be safe without doubt. If you want a SDHC Card Case which can hold more cards then you can go for Hakuba DMSPSD SDHC card wallet or Pelican 0910 Secure Digital Memory Card Case which both can hold upto 8 cards. But for an avarage photographer who use a Canon SX10 IS camera, Hakuba DMSP-SD4 Plastic SDHC Card Case would be more than enough. It can hold 4 SDHC cards and if those are 4GB SDHC cards ( if you use CHDK ) or 8GB SDHC cards then you wouldn't need more than 4 cards at all.