1.[How to choose the right size?]: Boat bimini top fittings hardware set are suitable for 7/8 inch(22mm) diameter round tube. Before purchasing, please confirm the diameter of our tube. 2.[It's more expensive than plastic, but it's worth it]:The hinged jaw slide and bimini top eye end cap are made of 316 stainless steel. Perfect replacement for plastic, nylon, or broken parts. 316 stainless steel is more durable than plastic and does not rust. It's more expensive than plastic, but it's worth it. 3.[Why does it look so smooth?]: We use manual polishing technology to make each bimini top cap eye look smooth. The casting is pretty smooth and has a shining polished looking. Great bimini top hardware for marine boat, yacht and so on. 4.[What is in the package?]: Bimini top eye end cap2, bimini top jaw slide 2, L shape hex allen wrench1, deck hinge 2. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-dadangjia