SKU: 12974938025

U.S. Navy Diving Manual Volume 2 Surface Supplied Air and Self-Contained Diving (SCUBA) NAVSHIPS 250-538

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U.S. Navy Diving Manual Volume 2 Surface Supplied Air and Self-Contained Diving (SCUBA) NAVSHIPS 250-538Originally published by the U. S. Navy as a training text for Underwater Demolition Team (UDT) members, deep sea divers and frogmen, this Diving Manual is an indispensible reference for anyone interested in exploring the depths. Volume 1 (sold separately) presents the general principles of diving. Volume 2 presents information about surface supplied air and scuba diving. Special sections include technical descriptions of equipment, maintenance,

Originally published by the U.S. Navy as a training text for Underwater Demolition Team (UDT) members, deep sea divers and frogmen, this Diving Manual is an indispensible reference for anyone interested in exploring the depths. Volume 1 (sold separately) presents the general principles of diving. Volume 2 presents information about surface supplied air and scuba diving. Special sections include technical descriptions of equipment, maintenance, medical aspects of diving, hazards, normal procedures and emergency procedures, This historical book is a carefully created copy of NAVSHIPS 250-538, originally created during WWII and revised periodically. If you're interested in diving, you MUST have this book on your shelf!

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SKU: 12974938025

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mike
Grantham, US
★★★★★ 5
Great ball for heavy chewers
Style: Assorted Balls (Pack of 3), Size: 2.5 inch
Great toy for my Doberman. She chews through tennis balls in about 15 minutes but these are very durable. She likes to chase them but also just chew on them.
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Reviewed in the United States on April 26, 2026
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Me
New York, US
★★★★★ 5
Durable
Style: Fetch Balls (Pack of 2), Size: 3 inch
Very bouncy. I like the noise it makes when you throw it. Pretty durable. Good size. Dog loves to play with them. Good material. Easy to use.
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Reviewed in the United States on April 5, 2026
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Susan Cedar
Phoenix, US
★★★★★ 4
My dog loves glowing fetch at night!
Style: Glow Balls (Pack of 3), Size: 2.5 inch
Fantastic. Sturdy. My dog loves them Glow in the dark is great for fetch at night. I keep a flashlight with me because the glow doesn't last really long. But they charge very quickly and are really bright.
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Reviewed in the United States on February 22, 2026
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Maddox
Charlottesville, US
★★★★★ 5
Indestructible
Style: Fetch Balls (Pack of 2), Size: 3 inch
These balls are indestructible! We have a lab and a lab mix and they CANNOT damage these balls. They love them for fetch and to just chew on them (slightly squishy, but NO damage). Best toys we have bought for them.
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Reviewed in the United States on April 19, 2026
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Animal Lover
Port Orchard, US
★★★★★ 5
Great trial set. Just be careful throwing the orange one!
Style: Assorted Balls (Pack of 3), Size: 2.5 inch
Blue isn't that easy to see in the yard White charges with bright light/UV and is truly a game changer for night-time fetch. Both dogs clearly favor it. Orange is easy to see in the grass at day They're 3 different weights as well, so double trial. I prefer medium for my big dogs, though light performs well too The orange is HEAVY and unyielding. Do NOT throw it with a ball thrower. It could damage your house or knock your dog out. Seems tough though.
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Reviewed in the United States on January 16, 2026

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