Product description: 

[product model]: 19157-3 [Product magnification]: 1.5 times, 2.5 times, 3.5 times

[product weight]: 136 grams (including packaging) 

[Product size]: 75*150*45mm (folding size),195*150*45mm (opening size) 

[product material]: metal frame, acrylic optical lens 

[Battery model]: 3 LR1130 button batteries (products with battery) 

[Packing method]: PP bag, color box