professional hard gel blue light ruckProfessional Hard Gel Blue Light Ruck Capacity: 3 g Nail correction with Blue Light professional hard gel promises a painless treatment. Blue Light Professional Hard Gel is quick and easy to use, making it an ideal solution for minor nail corrections. The gel is cured using the professional Blue Light LED lamp and thus adheres optimally to the nail. Note: During the curing process, blue light protective glasses should be worn to prevent eye damage