Model Number: AOI UCL-90PRO
Description: Underwater +18.5 Close-up Lens
Material: 
Hard Anodized Aluminum Alloy Barrel5 Lenses
5 Lenses Elements in 3 Groups with Multi-layers AR Coating
Waterproof: 60 Meters
Dimensions: 72.5mm (D) X38mm (H)
Weight (On Land / Underwater): 
325 g  (on land)
210 g  (underwater)
Accessories:
Lens Pouch (LPC-01)
ABS Front Lens Cap (LFC-04)
Rear Lens Cap (LRC-02)
Lens Secure Line (LSL-01)