Tigress 4 Transom Mount Rod Holders. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Constructed of cold drawn anodized aluminum. Includes white liners to protect your rod. WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm.