Common interior linings include microfiber, plush, and soft flocking. These soft materials cradle lenses to reduce the risk of scratches, smudges and dust buildup.
Many stands use a weighted or otherwise sturdy base to prevent tipping so the holder remains stable when you lift or replace glasses with one hand.
Product descriptions typically recommend spot cleaning or wiping with a damp cloth. Many of the listed materials are described as easy to clean; follow any care instructions on the product label.
Travel organizers commonly use a folding case design with a snap-style closure (one listing cites a copper snap buckle) and often include a handheld strap for carrying or hanging.
Sizes vary by design. Listed heights range roughly 2.0–6 inches, widths about 2.56–5.91 inches, and depths about 3.35–5.91 inches. One acrylic wall rack is shown as 38 x 3.8 cm (15" x 1.5").
Most holders are described as fitting standard, small to medium, or "most" glasses and sunglasses. For car/visor holders, one listing specifies about 2 cm (0.8 in) of temple/back clearance.
Car/visor holders are described as faux leather with a round temple panel and built‑in magnets to help stabilize frames. One listing notes about 2 cm (0.8 in) of temple/back clearance and says the design becomes easy to operate with practice.