I have bought some new shuttles:
set of Sewmate Brand shuttles
there are two kinds of Sewmate shuttles, one with tip, and the other one is tip-less. Mine are tip-less as you see, they are about 7cm tall, 2cm wide, and 1cm height. It is really so lovely colorful shuttles to use with both thick and thinner threads. It is comfortable, and not heavy if you don't overload it with thread. It is very good for beginners in my opinion.
Prym Shuttles
This shuttles are 6.5cm tall , almost 2cm wide, and 0.5cm (half cm) height. I love love the body of this shuttle, it is so slim, and I love its movements through the thread. It is tip-less as you see so you must use a crochet hook with it. This shuttle is not suitable for beginners-in my own opinion- because it just work with very very fine thread. It is an amazing when you start working with thin threads.
Aero shuttle,
This shuttle is 8cm from tip to tip tall, 2cm wide, 1.3 cm height. As you see this shuttle has a hook in the end of it, so you don't have to use a crochet hook with it. It is shuttle with bobbin, and comes with an extra bobbin with it. It is lovely , and handy to use, but -in my own opinion -it is not for beginners too because it is not easy to deal with it, and I think it works with thin thread. You can load it with a thicker thread, but its hook is really so small to a degree you cannot use it with thick thread.
Very cheap shuttles,
Those are copy of Clover shuttle. They are Chinese products, and it is very cheap. They are the first shuttles I owned. I have bought them from ebay for 1.5 dollars!!!!!!. Thanks China so much for their cheap products. I always use cheap tools, yarn, and thread when I start to learn new craft. This one -in my own opinion- is very good for beginners. You don't have to carry hook with you , it is light to carry, and very easy to load it. Just one bad thing about the Chinese copy its tips are not tight enough, but still thank China for cheap products which give me a chance to start learning my crafts.