I purchased this new and used only one of them for a short test. However, it didn't suit my needs, and I don't anticipate using it in the future, so I'm putting it up for sale. I'm not sure which of the 6 I used, so I'm listing all of them as used, good condition. TC200C06 type electrical construction materials, set of 6, stored in a transparent case. - Model Name: TC200C06 - Quantity: 6 - Type: Transparent Case - Application: Electrical Construction Materials - Brand: KASUGA Thank you for looking.