Katy Perry - The Hollow Heel Sandal. Color Tranquil Blue. Low Stock. On sale for $74.45. MSRP $109.00.. 5.0 out of 5 stars1 left in stockBrand NameKaty PerryProduct NameThe Hollow Heel SandalGenderWomen'sColorTranquil BluePrice$74.45MSRP: $109.00