2 standard most popular size to choose, for thick and thin rimless frame lens assemblies.
For rimless eyeglasses prescription and reading eye lens frame assemblies requiring dual shaft sleeves
This type of dual sleeve bushing has Both hole on head of sleeves, allow Metal Frame Pins to lock and tighten up Snug to Lenses
Standard Clear Color Plastic Bushings
Size:(A)1.4mm x 7mm x 0.8mm; (B)1.5mm x 7mm x 0.8mm
1000 Pieces Rimless Eyeglass Frames Stopper