The items you can receive from Spectral Crate are:-
1 X 500 ClaimBlocks
1 X 1000 ClaimBlocks 
2x Spectral Keys
2x Villager Spawn {Use to summon a Villager}
3x Magic Dust {Get 3 random % Magic Dust to increase success rate on an enchantment book}
4x Ominous Bottle {Bad Omen V}
32x Enchanted Apples
32x Diamond Cookies {Custom Item grants you full health}
64x Bottle O' Enchanting

Simple Enchantment Book {Get a random Simple Enchantment} 

Unique Enchantment Book {Get a random Unique Enchantment} 

Elite Enchantment Book {Get a random Elite Enchantment} 

Ultimate Enchantment Book {Get a random Ultimate Enchantment} 

Legendary Enchantment Book {Get a random Legendary Enchantment}
MobTrak Creator {Track mobs killed on a applied item} 

BlockTrak Creator {Track amount of blocks broken on a applied item}
FishTrak Creator {Track how many fish caught on a fishing rod} 

Slot Increaser {Increase the amount of custom enchantment slot or custom enchantment that can be applied on an item}
Jackpot! (Shulker Box) { 2 stacks of Diamond Ores} 

Colors Box (Shulker Box) {Get a stack of all the dye's avialable} 

Template Pack (Bundle) {Contains 20 diamonds and 2 of each armor trim.} 

Becanator Box (Shulker Box) {Contains all the Ore Block and a Beacon to make a Fully Activated Beacon} 

Oceanic Box (Shulker Box) {Contains Blocks found in Ocean Biome}
Dback (7 Days) {Eat to get access to /dback and go to your last death location} 

Creeper Spawn {Summon a Creeper} 

Wither Kit (Shulker Box) {Contains nether blocks and blocks to summon the wither} 

Wood Kit (Shulker Box) {Contains All Wood Varient Blocks} 

Elite Rank (30 Days) {Use to get access to the Elite Rank for 30 days. Does not include the kit} 

Food Kit (Shulker Box) {Contains Food items to fill your hunger bar} 

PvP Kit (Shulker Box) {Conains items used for PvP}

Store Discount (10%) {Get a 10% discount on your next purchase from store}