Bass Pro Shops Marker Buoy

Bass Pro Shop - TomarAventura

Cal-June Trip Line and Anchor Marker Buoy

Keys to Locating & Fishing Productive Brush Piles

Bass Pro Shops Marker Buoy

Portable Fishing Marker Buoys make Fantastic Teaching Aids

Fishing Buoy Marker FOR SALE! - PicClick

River Walleye Tackle and Tactics

Lindy Marker Buoy, Hot Lime : Fishing Marker Buoys : Sports & Outdoors

Bass Pro Shop - TomarAventura

Do these things work at all? Or are they just a gimmick? I figured at that price, even if I save two lures it might be worth it : r/Fishing