thkfish Fishing Spooler, 1Pcs Fishing Line Spooler with Suction Cup Fishing Reel Spooler Fishing Tackle Spooler System Price: $10.49 (as of 28/10/2020 21:14 PST- Details) & FREE Shipping.

COMPLETELY ADJUSTABLE: Easy to remove and install. Compact and lightweight, you could always remove the installation. With fastening springs and adjustable clamping force size, you can control line tightness.
STRONG ON SMOOTH SURFACE: The suction cup is strong and holds the device securely on Smooth Place. It’s so easy to use just set the tension bolt and start cranking that fast and easy. The Suction Cup at the bottom could adsorb on any smooth surface, especially on glass material with water on.
AVOIDING LINE TWIST: Multi-rotate Aluminum coil holders, avoid line twist. Vacuum suction cup for any flat, smooth surfaces. Take it down firmly and make good use of trigger on cup to make the spooler sucking tightly (TIPS: Wet the cup bottom or flat surface a little first for better hold).