It is fixed by screws, which is easy to install, and it increases its stability, which is not easy to fall off, and its bearing capacity is increased. It can effectively prevent the wine glass rack from oxidizing and rusting. The quality of the sturdy iron material is durable and dependable, keeping your stemware chip-free is no longer a hassle.This under cabinet stem rack comes fully assembled and ready to mount to help you conserve space in your kitchen.This stemware rack can save cabinet space and fit the corner under shelf perfectly, elegance to your kitchen or bar decor.The wine glass rack features an opening widened mouth design, with the opening width 3.5 inch, it is suitable for Bordeaux wine glasses, white wine glasses, cocktail glasses, etc.