Frame Fit
It is important that the frame should sit firmly and well up on the nose to take the slight downward push of the spring loop. The spectacle frame side arms should also fit well, be properly shaped over the ears and have a firm grip across the head to prevent the frame sliding down the nose. Silicone rubber tips called "Temple Cushions" are available to improve the grip of side arms. Frames with swivelling nose pads can be fitted with silicone rubber covers to improve the grip on the nose.