VERSATILITY: With 3 Survival Emergency Tools in One this Lightweight Device is Great for Camping, Backpacking, Hiking and Outdoor Survival. BE PREPARED: Pea-less Design Emits a High-Pitch Shrieking Sound for Emergencies; Indestructible Signal Mirror for Emergencies and Person Grooming. RELIABLE: Strong Acrylic Lightweight Mirror for Emergency Signaling, Pea-Less Designed Whistle and Lanyard and Float Device for Protection from Sinking if Dropped. DIMENSIONS: Mirror: 4.5" x 2.75" x 0.1" & Weighs 0.6 oz ; Whistle: 2.75" x 0.75" x 0.75" & Weighs 0.3 oz; Float: 2.3" x 1.3" x 0.25" & Weighs 0.1 oz.