The keychain is described as wipe-cleanable — clean with a damp cloth or spot-wipe as needed. Sterling jewelry is listed to be cleaned with appropriate jewelry cleaners (follow product instructions for sterling silver).
The keychain measures about 2.0 × 2.75 inches, is made from metal/brass, and is packaged in a plastic polybag with a cardboard hang card. It is also noted as wipe-cleanable.
The listing specifies a large collar with an adjustment range of 34–52 cm and a width of 1.9 cm. Smaller size ranges are not specified in the available details.
The necklace is listed at 18 inches and made of sterling silver. Product notes state it is lead- and nickel-free, hypoallergenic, and tarnish-resistant; care instructions recommend cleaning with jewelry cleaners.
The PVC collars advertise encapsulated waterproof material, soft/ breathable and sweat-absorbent comfort, easy cleaning with no peculiar smell, an adjustable POM buckle for sizing, all-season suitability, and bright, eye-catching colors.