Available heights include 24 inches, 25.6 inches, 32 inches, and 40 inches.
Panel counts range from 6 up to 24, and many designs can be arranged into rectangles, squares, octagons, or other multi-sided shapes.
Many models are foldable, collapsible, or otherwise portable — they assemble and break down quickly for travel, camping, or compact storage.
Several designs include a built-in door or gate panel with latches; at least one listing mentions a gate that can be operated one-handed for easy owner access.
Listings show two main materials: steel/metal (often heavy-duty wire or metal construction) and clear acrylic (crystal-clear panels).
Most listings state "Adult assembly required." Many say "No tools needed," while some indicate that tools are provided or that tools are not included — check each product's details to confirm.
Metal/steel playpens are described for both indoor and outdoor use and often note rust-resistant or anti-rust finishes; the acrylic enclosure is presented as more suited to indoor/display settings such as rooms or classrooms.