3D Engraved Rectangle Thin Crystal - Medium (150x100x35mm). Crystal clear optical crystal glass block with customised 3-dimensional design laser engraved deep inside. Advantages; fully customisable, unique and exciting (wow factor), high perceived value, long shelf life. Applications; Awards, Corporate Gifts, Paper Weights, Promotional Products, Trophies, Presentations, Plaques, Rewards & Incentives. All internal engraving is done locally, so we have no minimum order quantity and lead-times are short. Other decoration options include surface etching & full colour printing. Indent pricing can be provided on application.