So I made an order for two vial types. 24x "1/4 dram" 1oz "Vivaplex" clear vials with lids, and also 24x "Vivaplex" clear 15mL vials with black lids. The 24x 1/4 dram's are perfect, perfect size, perfect leak proof, perfect glass quality, they really go above and beyond with their vials it seems.