The Tessi padlock features a rectangular shutter made from hardened steel, measuring 85mm in size. Its design allows the shackle exit and keyway to be on the same side, making it suitable for use in roller shutter lock housings. The lock has a high-security 6-pin locking mechanism that is resistant to picking and includes an anti-drill plate for added protection. Additionally, the key is retained in the unlocked position for convenience.