- Brand: Singing Rock - Model Name: JACK - Type: Belay Device - Included: Instruction manual *No original box - Background Purchased from an authorized dealer and used a few times, but I'm selling it because it doesn't suit my work style. - Frequency of Use Used for rappelling from a building, about 10 descents, totaling less than 300m. - Condition There are minor scratches from use and storage, and a 1-2cm scratch in a common area for this type of device. *See photo 5. There is a scratch on the inside when opened. - Caution Serious accidents that can be life-threatening can occur depending on the usage. Please understand the nature of the device before purchasing. We are not responsible for any accidents. Also, due to the nature of the product, it is treated as a hygiene product in shops and returns are not accepted. We will handle it the same way, so please understand this before purchasing.