Supertech BMW S42/M42/M50/S50/M52/M54 Dual Valve Spring Kit

Supertech BMW S42/M42/M50/S50/M52/M54 Dual Valve Spring Kit

Marsoni

M251S

$280.14

Get it in 3 business days with 1 day shipping. Friday, May 29

Supertech BMW S42/M42/M50/S50/M52/M54 Dual Valve Spring KitSupertech BMW S42 M42 M50 S50 M52 M54 Dual Valve Spring Kit

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Total waste of money. These sat all day in Texas sun then were under a 60 watt lamp until I took them outside at night. There was barely any glow to the balls and the littl glow they had didn't last 10 minutes. I thought they were same size as a chuck it ball but they are slightly smaller. The 3x5 card in photo should sit evenly on top of all 3 balls. It doesn't because these are smaller. I have a 70 pound Malinois and these were just too small for me to feel comfortable using as I had concerns of them going down his throat. If you are looking for a fun night time toy you need to look elsewhere. I'd give zero stars if I could.

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Reviewed in the United States on January 9, 2026

Verified Purchase

RachelG

Bozeman, US

★★★★★ 5

MY DOGS' NEW FAVORITE BALLS!

Size: 3.5in Large

They are the greatest! Awesome squeaking, lightweight, bouncy, durable, fast and bright light have made my dogs have hours of fun and exercise. I'm hoping more get back in stock since I've acquired another dog who loves them. They have all the fun properties of a favorite toy! UPDATE... After the second purchase of these balls, they have now replaced the old "Chuckit" balls as my dogs' choice but they fit perfectly in the XL Chuckit handheld launcher! I hold the ball in the launcher up next to my outdoor back light for a few seconds and hurl it away multiple times and they really run for them like there is no tomorrow. Day or night these balls stimulate my dogs' enthusiasm for running and it is a joy to play with them and watch how much fun they have.

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Reviewed in the United States on March 25, 2025

Verified Purchase

Tammy H

Bozeman, US

★★★★★ 4

Great value

Size: 2.5in Medium

Love these balls. They are a great price, good quality, durable, really bright glow, bounce higher than my chuck it brand but they are a slight bit smaller. This is why I knocked off one star because they are loose in my ball thrower and more difficult to throw. Other than that, great product!

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Reviewed in the United States on February 21, 2026