Types of Sheet Lifter
Sheet Lifters are made in five basic shapes:

Boomerang. Boomerang lifters are ideal for D-ring and Slant-D binders. Their boomerang shape gives the maximum page-turning power at a lower price. Buy It

Curved. Curved lifters are designed for round ring binders. Ideally, they should be used for 1.5 ” rings and below, using Gull Wing-shaped lifters for 2″ and wider. Made in 2″ nominal and 3″ nominal widths. Buy It

Gull Wing. Excellent for medium-sized round and oval rings. Buy It

Flat. Flat lifters can be used in D-ring and Slant-D binders. They can also be used in round ring binders, especially in the larger ring diameters. Made in 3″, 5″ and 8.5″ widths. Buy It

Molded. Used primarily for specialty binders, such as those used in the legal profession. Buy It