The masks are made from vinyl and plastic; one listing specifically notes that some parts are injection-molded plastic.

Both listings specify a maximum head size of 24 inches.

The listings specify eye openings only — there are no additional face or mouth openings noted.

Listings note adjustable elastic straps (including across and vertical straps) and a chin support/strap for a secure fit; the listings also reference the maximum head size information.

Height measurements range from about 3.5 to 16.0 inches and widths from about 9.5 to 11 inches; one listing also gives an approximate size of 11 x 11 x 3.5 inches.

No — both listings state “Battery: No Battery Used,” so the masks do not require batteries.

The listings recommend the masks for Halloween, costume and themed parties, dance parties, and dress-up/play.