Tuff Stuff Deep V Mat - Durable & Comfortable Gym Mat for Yoga, Pilates & Home Workouts - Available in Multiple Sizes

I used this matting as the cover for my sluice flume. It is very effective at catching any and all heavy materials, even in faster water. I've actually found that most of the lighter flakes don't even move once they're in the mat. The pan picture is of just the top mat being washed out. Keep in mind, this is the expected amount of gold for the day.I also used this as the end section on my mini sluice, a 3 foot long piece of gutter with some matting. It hasn't caught any gold yet, but it catches anything heavy. Black sand, garnet, iron, you name it.The mat is also pretty easy to cut. I traced out my flume and cut it out of the matting in 10 minutes or so. I will be buying more for a recirculating beach sluice.