not really worth it [SEP] i thought these would help keep nail forms on while doing poly gel i read some other reviews saying it clamps too hard for poly gel i should have listened to this because i experienced the same thing they clamped down to hard to where poly gel was oozing out from under the nail form not only this but they are extremely fragile the first i picked out snapped because of you open them too quickly the coil moves out of place breaking the hinge