These quality iridescent glass coasters have a wood back with small bumpons to protect your table and come in 3 fabulous designs. They measure 10cm x 10cm. and are approximately 6mm. thick. 
If you choose the options to have six I will send you one of each design. If you choose 4 then I will send you 4 random designs un less you contact me to let me know your preferences.
 https://www.paperartworks.co.uk/contact
Please note that the prices includes 1st class  postage and you will not be charged extra at the checkout.