This kit is ideal for checking out which type of Tear Aid works on your fabric when the fabric type is unknown. The kit comprises: 1 x 22mm x 22mm patch of Type “A” 1 x 22mm x 22mm patch of Type “B” 1 x Alcohol cleaning wipe 1 x Instruction set This item is not retail packed – we simply pop these items into a DL envelope and post them to you immediately. Use: Clean a small area for testing with the alcohol wipe and apply both patches – ensuring you know which is which on the test piece as you will remove the backing strip which identifies the products in the application process. (Alternatively, just apply one of the two patches so you know which has not been applied) Wait for 24 hours for full bond strength. The patch which is virtually impossible to remove is the one for you!