Abstract: A toothbrush comprising a brush head having a plurality of nano-bristles. In one embodiment, the plurality of nano-bristles each have a length, and a diameter of at least a portion of the length is in a range of 50 microns to 150 microns. In another embodiment, the nano-bristles have a base portion and a top portion, with the base portion of the nano-bristles having a diameter in a range of 400 microns to 500 microns and the top portion of the nano-bristles have a diameter in a range of 50 microns to 150 microns.

Abstract: A method of forming a pet chew, comprising supplying Miscanthus grass; supplying at least one polymer; combining the Miscanthus grass and the at least one polymer to form a polymeric composition containing the Miscanthus grass; and forming the pet chew of the polymeric composition containing the Miscanthus grass. A pet chew containing Miscanthus grass is also disclosed.

Abstract: An example adjustable brush may include a brush head and a handle extending from the brush head. The brush head may include a first plurality of teeth extending along a rotation axis and a second plurality of teeth extending along the rotation axis. The second plurality of teeth may be rotatable independently of the first plurality of teeth about the rotation axis.

Abstract: An example adjustable brush may include a brush head and a handle extending from the brush head. The brush head may include a first plurality of teeth extending along a rotation axis and a second plurality of teeth extending along the rotation axis. The second plurality of teeth may be rotatable independently of the first plurality of teeth about the rotation axis.

Abstract: An example adjustable brush may include a handle and a brush head coupled to the handle. The brush head may include a platform, a first arm extending from the platform, and a second arm extending from the platform. A non-rotatable shaft may extend between the first and second arms and a rotatable shaft may be positioned between the non-rotatable shaft and the platform. The rotatable shaft may extend between the first and second arms. A plurality of adjustable teeth may be slideably coupled to the non-rotatable shaft and a plurality of spacers may be positioned on the rotatable shaft. At least a portion of one or more of the plurality of spacers may engage at least a portion of a respective one or more of the adjustable teeth. A rotation of the rotatable shaft rotates the spacers and causes a lateral movement of the adjustable teeth along the non-rotatable shaft.

Abstract: An example adjustable brush may include a handle and a brush head coupled to the handle. The brush head may include a platform, a first arm extending from the platform, and a second arm extending from the platform. A non-rotatable shaft may extend between the first and second arms and a rotatable shaft may be positioned between the non-rotatable shaft and the platform. The rotatable shaft may extend between the first and second arms. A plurality of adjustable teeth may be slideably coupled to the non-rotatable shaft and a plurality of spacers may be positioned on the rotatable shaft. At least a portion of one or more of the plurality of spacers may engage at least a portion of a respective one or more of the adjustable teeth. A rotation of the rotatable shaft rotates the spacers and causes a lateral movement of the adjustable teeth along the non-rotatable shaft.