I buy these from Pets at Home for £1.99 a bundle. They are made by Woodlands.

The sticks are a decent shape and length. They aren't too small so they will last for a while. The sticks are designed as a tooth aid, a way of keeping your pig's teeth down as their teeth grow throughout their lives. The sticks look like normal garden sticks but they are "special" sticks designed for rabbits and guinea pigs. I'm the proud owner of a four year old piggy called Guinness and he loves these.

Guinness adores these sticks. He lives on his own so I often worry if he's bored and fed up living by himself. Guinness chews on these sticks for hours on end and he seems to love them. I have noticed a difference in his teeth since he's been chewing on these. His teeth are much better. They actually look whiter and cleaner, definitely not as yellow as they were before. Plus the sticks are a great boredom aid. They don't take up much room in the cage either so you can leave one in there and take it out when you clean out the hutch. You can then place the stick back in the cage. The sticks don't "go off" or appear to go mouldy so they are excellent quality and fresh. I also use the sticks to play with Guinness. He loves it when I tickle his chin with one of these!

The sticks last ages, unless your piggy chews on them constantly. They are great value too and worth a try, even if they're just to keep your piggy's teeth down.