Glow effect: The intensity and duration of the glow depend on the quality of the phosphorescent material and how long it's been exposed to light. You'll typically need to "charge" the case by exposing it to bright light before it will glow in the dark.

Case materials: They are commonly made from durable materials like TPU (thermoplastic polyurethane) and PC (polycarbonate), which offer good protection against drops, scratches, and bumps.