is effective even on overcast days. This mirror is specially designed to aim the signal flash precise accuracy for optimal performance when you are in distress. With a convenient floating feature and a lanyard hole for attachments, this mirror comes equipped for your next excursion. Key Features Made of 100% lexan polycarbonate Lanyard hole for attachment Mirrored surface Floats so you wont lose it in the water Specifications Size: 3” H x 2” W x ¾” H Warranty: Lifetime limited