The following stipulations must be enforced:
1) Polycarbonate Lenses: This is the most important property of all protective spectacles or goggles. Good polycarbonate is virtually unbreakable, and will sustain the impact of a ball or finger.
2) Sports Band: an elasticised band and not temple pieces should secure the frame. Players must have something that will be secured tight to the head so that the spectacles or goggles won't fall off. A frame with temples will not hold tight enough and a jab from a finger could lift the frame off and potentially damage the eye
3) Safety: All glasses must be safe to the player concerned and everyone else participating in the game.