Dimensions: 6.22 in x 0.51 in x 0.51 in (15.8 cm x 1.3 cm x 1.3 cm)Wavelength: 405nmMax output: 5mwFeatures:Prohibit using the product under 16 agesUser is responsible for any improper using way Due to new regulations enforced by PayPal，orders of >5mW lasers units are no longer acceptedOrders that were previously accepted and unshipped will be cancelled and refunded to customersAny laser above 5mw cannot be sold using PayPalPacking list:1 x Protective box included1 x 2 x AAA batteries (included)<img src="http://112.74.112.28/down/products/210016/210016_000.jpg" noproxy>