All BOBO glasses are sold in Ready-to-Gift boxes to keep them safe during transport, making them a great gift option. Depending on the model, the glasses are sold in sets of 2, 4 or 6. BOBO always ships orders within 24 hours and usually with delivery within 1-2 business days. You are also welcome to the BOBO store or selected retailers. There are no rules on how to use any model, but below are some categories and with common models.