What does your bottom look like? Our stainless steel dredge features a bottom sensing closure that eliminates the need for a messenger weight! This dredge is a convenient sediment-collecting device for mud, sand, ooze and light gravel. A newly designed trigger insures that the jaws stay open during descent. Sampling volume is 110 in3. Sampling area covered by open dredge: 45 in2 (114.3 cm2). Actual weight is 3 lbs. Made in USA.