2 Confounding Variables

2 Strap Brown Cabin Trolley Bag 2 STRAP Blue 360-Degree Rotation Medium Trolley Suitcase 2 STRAP Blue Textured Large Hard Trolley Suitcase 2.Oh! Permanent Haircolor- Emerald Green, 100 ml 2.Oh! Semi Permanent Hair Color Enriched With Argan Oil 100 ml - Tropical Blue 2.Oh! Semi Permanent Hair Color Enriched With Argan Oil 100 ml - Red 2.Oh! Semi Permanent Hair Color Enriched With Argan Oil 100 ml - Violet 2.Oh! Semi Permanent Hair Color Enriched With Argan Oil 100 ml - Purple 2.Oh! Semi Permanent Hair Color Enriched With Argan Oil 100 ml - Bordeaux Wine 2.Oh! Semi Permanent Hair Color Enriched With Argan Oil 100 ml - Pastel Pink