Cómo elijo entre junior o Adulto. Que medida del brazo debe cumplir cada una?

La que escogí es la de color celeste le da a mis hijos y me calza a mi tambien

Could somebody mention the ranges of forearm sizes that junior and adult sizes are for? I have short arms but i dont know if the arma are short enough

I've short arms too, but I usually swim with the "adult ones" and I fell very confortable. I suppose that the junior ones fits kids under or about ten years...

Can these be used in an endless pool?

Yes, in fact that place that I was first recommended to try it was at SwimLabs of Issaquah, WA, which uses endless pools with three cameras to film your swim. They showed me the difference between my stroke before using the fulcrums and my stroke with them on. In practical use, you probably won't wear them for more than 100-150 yards at a time, just long enough per session to teach the arms and shoulders the stroke cycle that allows for a more effective and efficient pull.

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🏅 Swim Smarter, Not Harder: Unlock Your Ultimate Stroke Power

HIGH CATCH ADVANTAGE - Elevates the elbow to maximize propulsion—ideal for triathletes and open water warriors.
MUSCLE MEMORY MASTERY - Promotes early vertical forearm positioning to engrain perfect stroke mechanics.
PRO LEVEL TRAINING AID - Durable, lightweight plastic design with a secure pull-on fit for serious swimmers.
VERSATILE STROKE SUPPORT - Perfectly engineered for butterfly, backstroke, breaststroke, and freestyle training.
STROKE EFFICIENCY AMPLIFIED - Connects forearm and hand into a seamless surface for a powerful, uninterrupted pull.

The FINIS Swimming Forearm Fulcrum is a professional-grade swim training aid designed to improve stroke efficiency by promoting an early vertical forearm position. Crafted from durable plastic and tailored for adult swimmers, it enhances muscle memory and optimizes the pull phase across all four swim strokes. Ideal for triathlon and open water training, this lightweight, pull-on fulcrum helps swimmers achieve a stronger, more effective catch for faster, smoother swimming.

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Age range (description)	Adult
Closure type	Pull-On
Global Trade Identification Number	00616323200562
Manufacturer	Finis
UPC	781678389146 616323200562
Color	Yellow
Size	Senior
Style	Aids - Technique Aids
Height	0 inches
Length	0 inches
Weight	1 Pounds
Width	0 inches
Material Type	Plastic
Number of Items	1
Department	Men's
Item model number	1.05.028.50
Product Dimensions	35 x 13 x 8 cm; 200 g
ASIN	B001GQ2CIU

FINISSwimming Forearm Fulcrum for Swim Training

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