portable 3x "blue line"
the ultimate level of protection is provided in the 3x "blue line" portable which has an enclosure made of thicker, more rigid acrylic, and the mechanism can be retracted inside the housing for packing and travel, or protection when not in use. a large screw through the bottom of the enclosure holds the mechanisim in operating position or securely stowed. picture of bottom of the case
retractable, acrylic housing
weight: 12 oz
size: 5" x 2.8"
sm-103x portable 3x price: $259.95