Plastic garden ecobase tiles (Chigwell IG7)

I have 10 black ecobase tiles which can be used as a base for garden sheds, seats or equipment. Having changed the size of my garden shed they are now surplus to use. (originally 12 in the set) Each tile is approximately 50cm x 50 cm. You can read the details using the following link: https://www.argos.co.uk/product/2208659?clickSR=slp:term:eco%20base:28:1046:1