Is this set good for a beginner dog?

Yes. The jumps start low and the top bar falls away if the dog mistimes a jump, so a dog can learn without getting hurt. Add height as the dog gets consistent.

What size dogs can use it?

The 37-inch width and adjustable height suit most small and medium dogs. Very large or fast dogs may knock the light frames around, so weigh them down or use it on grass.

Can I use it indoors?

Yes, on carpet or a mat. The frames are light and the bottom bar is fixed, but on smooth hard floors the legs can slide, so a non-slip surface helps.

How many jumps come in the box?

Four jump bars, plus cross bars, vertical bars, grounding rods, three-way connectors, clips and a carrying bag. That is enough to set up a short sequence.

Does it work on grass?

Yes. Push the grounding rods into the turf to steady each jump. On very hard or dry ground the rods may not go in far, and the jumps can tip in wind.

How does it compare with a full agility kit?

It covers jumps only. A full kit adds a tunnel, weave poles and a tire, which cost more and take more space. This set is the cheaper, more portable way to start.