Dogs must ascend one panel of the A-frame and descend the other in the direction designated by the judge and they must touch the contact zone (the lower 42 inches) on the down side only, with any part of one foot prior to exiting the obstacle.

From: The American Kennel Club’s Regulations for Agility Trials (2009)

Tire Jump consists of a tire (or a circular object that resembles a tire) suspended from a rectangular frame. Dogs must jump through the tire opening in the direction specified by the judge without knocking the tire/frame over.

From: The American Kennel Club’s Regulations for Agility Trials (2009)

The Open Tunnel is a flexible tube of durable material that is capable of being formed into curved shapes. Dogs enter the end specified by the judge and exit the other end.

From: The American Kennel Club’s Regulations for Agility Trials (2009)

Bar Jumps consist of bars that are supported by bar supports that are mounted to uprights. Dogs must jump over the top bar, without displacing it, in the direction indicated by the judge.

From: The American Kennel Club’s Regulations for Agility Trials (2009)

Dogs must ascend the seesaw/teeter-totter plank touching the "up" contact zone (the first 42 inches) with any part of one foot and cause the plank to pivot. At least one paw must touch the "down" contact zone (the lower 42 inches) after the plank has touched the ground and prior to exiting the obstacle with all four (4) paws.

From: The American Kennel Club’s Regulations for Agility Trials (2009)

The Weave Poles consist of 6 to 12 poles that are mounted to a base. Dogs must enter the Weave Poles by passing between poles #1 and #2 from right to left. They must then pass from left to right through poles #2 and #3 and continue this weaving sequence until they pass between the last two poles. If the sequence is broken, the dog must restart the correct sequence, either at or anywhere before the location of the error.

Dogs must ascend one of the 8 or 12 foot ramps, touching the "up" contact (the first 42 inches) with any part of one foot, cross the 8 or 12 foot center section, and descend the other ramp in the direction designated by the judge. The dog must touch the down contact zone (the lower 42 inches) with any part of the foot prior to exiting the obstacle.

From: The American Kennel Club’s Regulations for Agility Trials (2009)