Most decorative cupcake wrappers arrive flat and form a circular wrap by inserting a tab into a pre-cut slot (a tab-and-slot closure), which secures the wrapper around a finished cupcake.
Listings commonly describe baking-style cups as grease-proof or non-stick paper, indicating they resist grease and are designed to release baked goods cleanly for easy removal.
They’re generally designed for standard to medium cupcakes. Listings report adjustable widths commonly between 1.75" and 2.5"; some designs note adjustability up to 2". One assembled decorative wrapper was measured at about 3.5" across the top. Because sizing varies by design, check the product dimensions for the specific wrapper before buying.
Some sets include cupcake toppers alongside wrappers (for example, kits with equal numbers of toppers and wrappers), and assorted holiday packs can also include extra mini baking cups in addition to full-size cups.
Heights vary by style: many decorative wraps measure about 1.75" tall, some listings report around 2.13", and typical baking cups are often about 1.25" tall.