are these the size of a rifle round

They are too small. the inside dimensions are 1/2 by 1 7/8. they will hold a .45 acp or smaller but not a .308 winchester. They will fit 6 small round shaped ibuprofen or 3 or 4 capsule shaped tylenol or 5 ML of liquid benadryl but that is about it.

I want to use these to test aquarium water. Can they be washed and reused?

I am not 100% sure as they are not glass. I assume that if you are using chlorine or other harsh chemicals, they may be absorbed into the material these are made from. I would suggest glass just to be on the safe side. I use these for fountain pen ink and some inks stain and even with household bleach and D**n soap any new ink I put into the washed vial has a smell of the chlorine bleach. I am not familiar with how the process for you works, but I would not myself reuse them only because of my experience. Hope this helps.

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50Pcs 5ml Plastic Graduated Vial Sample Bottle Container with Blue Caps | Storage Empty Bottles with Screw Caps for Laboratory Lab

Product ID: 71962708

📏Precise 5ml capacity

📐Compact 15x60mm vial size

🔵Secure blue screw caps

€ 19.60

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Description

🔬 Elevate your sampling game with precision and style!

COMPACT PORTABLE - Slim 15x60mm design fits easily into racks, bags, or pockets for on-the-go sampling.
VERSATILE USE CASES - Ideal for solids, powders, and liquids—adaptable to all your sampling needs.
SECURE LEAK RESISTANT - Blue screw caps provide a tight seal, preventing spills and contamination.
BULK PACK FOR EFFICIENCY - 50 vials per pack to keep your lab or workspace fully stocked.
PRECISION SAMPLING MADE EASY - Clear graduated markings ensure accurate measurement every time.

This pack of 50 clear plastic vials features a 5ml capacity with precise graduated markings and secure blue screw caps. Sized at 15x60mm, these versatile containers are perfect for safely storing solids, powders, and liquids, making them an essential tool for professionals seeking accuracy and convenience in laboratory or industrial sampling.

Specifications

ASIN	B07FFSYVW4
Best Sellers Rank	#31,323 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #53 in Lab Sample Vials
Date First Available	July 12, 2018
Item Weight	5.6 ounces
Item model number	02-059-013
Manufacturer	Eowpower
Package Dimensions	7.6 x 4.92 x 2.48 inches

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€ 19.60

Duties & taxes included

In stock

Sold byAmazon BelgiumDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Belgium.

Secure transaction

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