Single-Spring. 12-Inch minimum sign Height above ground. Comes with Auto-Latch Bracket to accept Roll-Up Signs with Lexan corner pockets. Common Uses: The SZ-412-S is primarily used along the sides of state highways and interstates where wind loads are greater and more frequent. Features: • Lightweight design • Compact for ease in storage / less than 1 cubic foot when stored • Breakaway Base • Over-sized pull pins and kick release for quick release of legs • 3 Separate height adjustments for uneven terrain • Bright orange legs for extra visibility on curbs & sidewalks Weight: 23 lbs. Folded Dimensions: 6.5" x 6.5" x 24" Safety: NCHRP-350 Accepted for roll-up signs up to 48” x 48“ Options: Universal Bracket For universal compatibility with other roll-up signs.