I don't know the object, but the pins are smaller than in 10-pin, but a little larger than in candlepin bowling.
It's a kind of bowling where the pins are shorter and smaller, thus more difficult to strike
I almost bowled a 300 game a few days back. I was so close! Do you enjoy bowling as a sport? I do I play all the time! I go to a ally by my house. So, are you playing ten-pin bowling, where you roll a ball down a lane to ten pins? Yes, I think it is the normal thing for bowling. Do you know what the ball is made of? No, I don't. Have you ever heard of the variation on 10-pin called duckpin bowling? I have never tried that, What is the object of that?
They are thus significantly smaller than those used in ten-pin bowling but are slightly larger and heavier than those used in candlepin bowling.