These 1000mm J channels are designed for holding signs or posters up to 4mm thick. You can use two channels in parallel for better stability. Heavy-duty foam tape is pre-applied on the back, making them ideal for irregular or flexible surfaces. These channels are made from flexible PVC and are easy to cut with a sharp blade. We provide cut-to-size services as well with a cutting fee. Also available in clear (LDPJ1000CRF).