FREE FAST SHIPPING! BRAND NEW ON MARKET! SPECIALLY DESIGNED BY GTE™ FOR BETTER COLOR VISIBILITY WHEN TESTING! Quantity 1: GTE™ 2x2 **ULTRA WHITE** PREMIUM PRO TESTING STONE - $20 Retail Value! Essential for testing gold, silver, and platinum! This specially designed high quality testing ultra white test stone can be washed and used again for hundreds of tests. It is designed specifically for testing and leaves a very visible streak when testing gold, silver, and platinum. It will not damage the pieces you are testing. This stone has a rubber backing and is brand new in the original GTE Box! In comparison to the black 2x2 stone, the ultra white GTE™ stone has increased color change visibility! Warning: Most eBay Sellers sell random stones that were purchased at a home improvement store, which are not made for gold testing and do not work. This type of stone will also damage your piece. FAST SHIPPING! We ship out orders within 24 hours RETURN POLICY: Most of the items we offer come with a long term manufacturer warranties but we also offer a 30 day no hassle return policy! Just send it back within 30 days and we'll give you a full refund no questions asked! Please message me with any questions