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7 Piece Gold Testing Acid Jewelry Test Kit w/ Scratch Stone 10k, 14k ,18k ,22K, Platinum, Silver, and Scratch Testing Stone Fresh from the Factory This Comes with a large testing stone 2" x 1.5" Each bottle has 1/2 fl oz of acid. The sturdy plastic bottles maximize safety and allow the user to easily squeeze out one drop at a time. All bottles have different cap colors to help keep acid karats organized easier Latex Gloves are recommended with the use of any testing acids for safety You will receive: 1 bottle of 10k testing acid 1 bottle of 14k testing acid 1 bottle of 18k testing acid 1 bottle of silver testing solution 1 bottle of platinum testing solution 1 bottle of 22k testing solution 1 Scratch Testing Stone 2" x 1.5"