From the webpage:
This interesting crocheted wave pattern can be done in shades of the sea, as shown, or in any color combination that suits your surroundings. Use a non-slip rug pad cut to size for safety and extra cushioning.

Project Number: LW3533
Skill Level: Intermediate

Supplies:

• RED HEART® Super Saver®: 2 skeins each of 530 Orchid A and 3945 Blue Suede D, 1 skein each of 512 Turqua B and 505 Aruba Sea C
• Susan Bates® Crochet Hook: 9mm US M-13
• Yarn needle

NOTE: Rug is worked with 2 strands of yarn held together throughout. Carry D along side edges when not in use.