Lightweight and give you a high-quality 3D picture. No batteries required and don't need recharging. Polarized lens to reduce and increase picture clarity. Adopting high quality material, environmental-friendly. Low degree of color deviation on the edge of glasses ensures wider viewing angles. Type: 3D Glasses Viewing Experience: Non-Immersive 3D Glasses Type: Polarized Model: VQ163R Item Size: Approx. 15.3 x 4.1 x 0.4cm / 6 x 1.6 x 0.2inch Item Weight: 25.8g / 0.9oz color:Black Material:plastic The product can only be used on IMIX screens in cinemas! Package Contents: 20 x Virtual Reality 3D Glasses Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.