Frame Style Buckle: This is the type of belt buckle most belts have, and it is used for formal as well as casual belts. Frame style buckles require holes to fasten the belt.
Plate Style Buckle: This type of buckle is often used for military belts or more ornate belts, as the front of the buckle is decorated, and the back has a hook that connects to the holes of the belt.
Box Frame Buckle: Box frame buckles feature a hollow metal buckle and a post on the inside that secures the belt to the buckle tightly so it stays in place. These buckles do not require holes to keep the belt in place and are useful if you don’t like belts that have only a limited number of holes.
Ring Closure Buckle: Belts with O ring closure operate with the friction of the belt material to keep it in place. The belt is woven through the loop and pulled to the desired size so it stays the same size. This type of closure is usually used with cloth belts, and it requires no holes.
Reversible buckles: Reversible buckles are a useful type of buckle because they essentially give your belt two lives! The buckle can reverse so it can be used with the other side of the belt.